Guide bar support for concrete gauges



GUIDE BAR SUPPORT FUR CONCRETE GAUGES Filed March 6. 1929 I I A -\Z/ 7/? y g I VENT 8 6 J; 2 [Li/fl V ATTORNEY.

Patented Doc. 29, 1931 UNITED STATES PATENT OFFICE This invention relates to guide bar supports for concrete gauges, and has for an object the revision of a device of this character which is positive in operation. Most d supports, so far as the inventor is aware, that did are now on the market are inecient in that the same, it struck, will change theiposition of the support to the end that results contemplated are not always realized. As an illustration, it a concrete door is to be poured, it

is essential that some levelin means he utilined so that the concrete wi l have a'given thiclrness and the surface will be level. Most 5 of the sup orts include some impaling device whereby t e supports may be maintained in position upon, say, a flooring and it these supports are interfered with, the resultant poured floor may or may not be level. It is with the idea of overcoming this defect and other defects that the present invention is primarily directed,

In my invention, i provide supports having shoulder portions whereby when the supports are inserted through an opening in, say, a flooring, the shoulder will engage the surface oi the flooring. 'lhus, so liar as the support is concerned, it will always maintain a given height above the flooring. ll then provide brackets for each support which are adjustable as to their position upon the supports, Bars are adapted to extend between the brackets and a leveler extending between parallel bars acts as a final medium whereby true and substantially level poured flooring will result. After the flooring has been poured, the supports may be removed and used again. 7.

The invention has for further objects the provision oi a guide bar support which is simple of construction, positive in operation, and generally superior.

"With the above and other objects in view, the invention consists in the novel and useful provision, "formation, construction, association and relative arrangement of parts, members and features, as shown in. a certain llllllJOdlll'lQHlh in the accompanying drawings, described generally, and more particularly pointed out in'the claim.

lln the drawin:

Figure 1 is a perspective view, partly in section, of a number of gauges utilized in carrying out the invention,

igure 2 is a side elevation of one of the gauges in combination with a supporting member,

Figure 3 is a front elevation of the gauge shown in Figure 2,

Figure 42 1s a perspective view of one of h the gauge members, and,

Figure 5 is a further perspective view of a gauge member.

Referring now with particularity to the drawings, in Figure 1, l have shown a plurality of gauge members designated as A, and the same include a standard or post a, and a bracket 5 adapted to cooperate with the post a. Used in conjunction with the device A are guide bars a and one or more levelers d,

The post a is an elongated member shown in the drawings as substantially cylindrical, although any other shape would as well, with one end thereof provided with a shard: oi reduced diameter 1, thus forming a shoulder 2 as between the portion 1 and the body of the post 3. The member includes a sleeve or annular portion i, a cradle or hook portion 5 extending from said sleeve as well as means 6 constituting a headed screw passed through a screw-threaded opening in said sleeve. This member 5 is adapted for slidable movement upon the member a and the screw 6 allows the member I) to be positioned at any point desired upon the member a.

The operation, uses and advantages of the invention are as follows:

lln Figure l, l have shown a building construction provided with plank flooring at 'l' and it is desired to pour concrete, cement or the like 6 upon said flooring. The gauges are first placed in position upon the flooring by boring holes in the flooring, as shown, for

instance, in Figures 2, 3 and l at'S. 'lhe gauges are maintained in susbtantial alignment and in Figure 1, l have shown four of the gauges with the guide bars 0 extending between pairs of said gauges and the ide bars also in substantial parallelism. fter the depth of the concrete flooring has been determined, the'members b are adjusted so 2 p aaeaees that the hremhet portions 5 of the members b will be at this selected distance above the flooring. The members a are then placed in position and the leveler 03 may extend between the guide bars. Jlhe flooring is then poured, to the end that the surtece thereof will lie directly beneath the uide bars and the edge 9 of the leveler 0E. lifter a portion of the floorin has been poured, the difi'erent no au as may e removed-while the concrete 1s stlll wet and used over again.

It is obvious that l have provided a device which is positive in o eration and in which the brackets are res. ily adjustable to any 15 height desired.

' In systems known to the inventor, the member a, is usually provided with a pointed end and a her or equivalent means is umd for pounding such a member within a w board or other substance upon which the concrete fioorin is to be laid. After the guide bars are in p ace if any of the standar sare struck, the leve of the guide bars is, of course, changed and any flooring poured usas ing the guide bars as a leveler wlll, of course, be uneven. ihis cannot happen with the present invention, as the standards are capable of maintaining themselves in an upright position relative to a flooring or other so members.

It is obvious that various changes and modifications and variations may be made in practicing the invention in de arture from the particular showing of the rawings and 3; description as given, and within the scope of the appended claim, without departing from the true spirit of the invention.

I claim:

A guide bar supporting device including a 40 post adapted to have the lower end thereof lnserted in a structure over which cementitious material is ada ted to be poured, said post comprising a body of uniform diameter throughout whereby the same may be readily ,45 withdrawn through the poured cementitious material and havmg the lower end thereof reduced for insertion in the said recess of the structure over which the cementitious material is to be poured, a bracket adjustably fit- 60 ting over the body of the post and having an offset guide bar su portin hook portion, and a set screw carrie by the racket and adapted for binding enga ement with the post at any unpredetermine point thereof.

56 In testimony whereof, I have signed my, name to this specification at Los Angeles, California, this 21 day of February 1929.

' CARL PILJ. 

